CVE-2021-32030

Known Exploited Public Exploit

Description

The administrator application on ASUS GT-AC2900 devices before 3.0.0.4.386.42643 and Lyra Mini before 3.0.0.4_384_46630 allows authentication bypass when processing remote input from an unauthenticated user, leading to unauthorized access to the administrator interface. This relates to handle_request in router/httpd/httpd.c and auth_check in web_hook.o. An attacker-supplied value of '\0' matches the device's default value of '\0' in some situations. Note: All versions of Lyra Mini and earlier which are unsupported (End-of-Life, EOL) are also affected by this vulnerability, Consumers can mitigate this vulnerability by disabling the remote access features from WAN.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 93.48% Top 5%
KEV Since 
Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/ASUS-Gaming-Routers/RT-AC2900/HelpDesk_BIOS/ product
https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0010.md third party advisory exploit
https://www.atredis.com/blog/2021/4/30/asus-authentication-bypass exploit
https://www.asus.com/us/supportonly/lyra%20mini/helpdesk_bios/ product

Frequently Asked Questions

What is the severity of CVE-2021-32030?
CVE-2021-32030 has been scored as a critical severity vulnerability.
How to fix CVE-2021-32030?
To fix CVE-2021-32030, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-32030 being actively exploited in the wild?
It is confirmed that CVE-2021-32030 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~93% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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